slider height on minimum pro

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I installed this slider http://sridharkatakam.com/how-to-replace-background-image-in-minimum-pro-with-responsive-slider/ on the minimum pro site I'm working on.
Is there a way to adjust the height for the images on the slider so that they stay the same ratio across all viewing platforms? When I view on a widescreen desktop, the height of the image is cut significantly - it will only display at 530px high
When I move my window viewer in and the width is 1000 pixels or less my larger image will display at 600px high.

I'm using the Genesis Responsive Slider and the max height is set to 600px high.